One year since the story of Princess Super Slut… A modern-day guy uses his knowledge to survive in a medieval world where he woke up. Having “invented” and mass produced a weapon unknown to old times, he’s given one nation the means to conquer others. They lay waste to the Alliance of Mao… but one young lady refuses to surrender quietly. Her name is Yui, princess of Mao City. Man and woman clash in the next bloody, erotic tale of twisted history.